8-DemethyleucalyptinCAS# 5689-38-3 |
Quality Control & MSDS
3D structure
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Number of papers citing our products
| Cas No. | 5689-38-3 | SDF | Download SDF |
| PubChem ID | 15715157 | Appearance | Powder |
| Formula | C18H16O5 | M.Wt | 312.3 |
| Type of Compound | Flavonoids | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | 5-hydroxy-7-methoxy-2-(4-methoxyphenyl)-6-methylchromen-4-one | ||
| SMILES | CC1=C(C=C2C(=C1O)C(=O)C=C(O2)C3=CC=C(C=C3)OC)OC | ||
| Standard InChIKey | QPWOSZAYIILLKU-UHFFFAOYSA-N | ||
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months. Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it. |
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| About Packaging | 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial. 2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial. 3. Try to avoid loss or contamination during the experiment. |
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| Shipping Condition | Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request. | ||
| In vitro | C-methylflavonoids isolated from Callistemon lanceolatus protect PC12 cells against Abeta-induced toxicity.[Pubmed: 20101562]Planta Med. 2010 Jun;76(9):863-8.
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8-Demethyleucalyptin Dilution Calculator
8-Demethyleucalyptin Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 3.202 mL | 16.0102 mL | 32.0205 mL | 64.041 mL | 80.0512 mL |
| 5 mM | 0.6404 mL | 3.202 mL | 6.4041 mL | 12.8082 mL | 16.0102 mL |
| 10 mM | 0.3202 mL | 1.601 mL | 3.202 mL | 6.4041 mL | 8.0051 mL |
| 50 mM | 0.064 mL | 0.3202 mL | 0.6404 mL | 1.2808 mL | 1.601 mL |
| 100 mM | 0.032 mL | 0.1601 mL | 0.3202 mL | 0.6404 mL | 0.8005 mL |
| * Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations. | |||||
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C-methylflavonoids isolated from Callistemon lanceolatus protect PC12 cells against Abeta-induced toxicity.[Pubmed:20101562]
Planta Med. 2010 Jun;76(9):863-8.
Increased beta-amyloid (Abeta) production and its aggregation to the oligomeric state is considered to be a major cause of Alzheimer's disease (AD). Therefore, reducing Abeta-induced neurotoxicity could provide a suitable means of prevention or intervention in the disease course of AD. The neuroprotective effects of isolates from Callistemon lanceolatus DC. (Myrtaceae) against Abeta were evaluated using PC12 cells. To evaluate the effects of Abeta on apoptotic cell death and the effects of Bcl-2 family proteins and caspase-3, TUNEL assays and Western blotting were performed, respectively. Substantial fractionation and purification of the EtOAc-soluble extract of the aerial parts of C. lanceolatus afforded six flavonoids, 4',5-dihydroxy-6,8-dimethyl-7-methoxyflavanone (1), eucalyptin (2), 8-Demethyleucalyptin (3), sideroxylin (4), syzalterin (5), and quercetin (6). Compounds 1, 5, and 6 were found to protect PC12 cells effectively against Abeta-induced toxicity. In particular, compound 1 showed the most promising neuroprotective effect with an ED (50) value of 6.7 microM in terms of decreasing Abeta-induced apoptotic cell death, and this was accompanied by a decrease in caspase-3 activation and an increase in Bcl-2/Bax ratio. These results suggest that compound 1 could be developed as a candidate anti-AD agent due to its attenuation of Abeta-induced apoptotic cell death.
